Bearing-roll with angular interspace.



, LOGKWOOD. BEARING ROLL WITH ANGULAR INTERSPAGE. APPLICATION FILED AUG. 21, 1909.

950 1 1 @u Ptentea Feb. 22, 1910.

2 SHEETS-SHEET 1.

G. S. LOGKWOOD.

BEARING ROLL WITH ANGULAR INTERSPAGE, APPLICATION FILED AUG. 21, 1909.

950, 1 10, Patented Feb. 22, 1910.

2 SHEETS-SHEET 2.

LULUmm/m v I @mymfiw vented-certain new and useful Improve- ',Be .itknown. thatrl, CHARLES S. Loonnsrarnr orrrom;

or fu nwamn saw- .i'nu'snr, ASsmoamm m. norm-m oss wire; ensures rnrnnsracsfi y y v te m t smen.. ratentaremz, 191.0, Application filed August 21, 1909. Serial-No. 513,972.

pass throughsu'ch lubricant and secure a supply of the same in thewedgeshaped grooves. I a

As a series of rolls is always used in a roller bearing, and the spiral interspaces of all the rolls traverse different parts of the casing and shaft, it is obvious that all parts are thus in turn eltectively, lubricated.

To; all whom it may concern:

woon, a citizen; otrthe United States, residing a'tQSQ Market street, Newark, county of Essex, and State of NewJersey, have inments in Bearing Rolls with Angular Interspaces. fully described and represented in the following specification and the accompanying drawings, forming-a part of the sa1ne.;: tv This invention relates to roller hearings in which; cylindrical rolls are used to sustain the.=load and particularly to a cylindrical bearing-roll formed ofspiral coils and having'the coils widerat one edge than the other and the coils having a V-shapedspiralt interspace between them proportioned RDClqilClHDtGfltoretainoil between the coils.

It is common at the present time tosupply-. alubricant to roller bearings to diminish the friction caused by the movement of the rolls and shaft within-1 the casing; and it has been found thatif the'coils be wound in very close contact with one another they will operate gradually to press the oil toward the ends of the casing, leaving the middle portion destitute of lubrication; but if the coils be separated in a suitable degree, the spiral interspace between the coils serves as a reservoir of oil from which the oil is constantly distributed over different parts of the surface upon the shaft and casing. Such iuterspace will not, however, retain the oil it itbe made too wide, and upon the contrary the oil will not be delivered from the spiral interspace it the same be so narrow as to produce an excessive capillary attraction forthe oil.

The difficulty of securing an exactly proportioned interspace is wholly avoided by making the coils wider at one edge than the other so as to produce a wedge-shaped spiral inter-space. or groove upon the inner or outer side ofthe roll, the narrower portion or. which serves to attract any oil' over or through which the roll passes within the casing, while the wider portion of such interspace serves to carry the oil thus aceumulated, until it is distributed in a spiral path upon the casing and shaft.

. The supply of, lubricant naturally accumulates in the'bottom of the casing, and the rolls in their passage around the shaft of the invention, Figure 1 representing a side view of a roll 'having the grooveor .interspace widest upon its outer side; Fig. 2 is a longitudinal section of one end of such roll; Fig. 3 is aside View of a roll hav ing the groove widest upon its inner side; and Fig. 4c is a longitudinal section of one end 01: suchroll. Fig. 5 is a longitudinal and containing a; shaft which is not shown in section. I In F1g. 5,13 designates the casing'of the the same, and A" designates the rolls having a J-shaped spiral interspa'ce 6" between the coils.

in Figs. 1 and 2, A designates the roll,

the outer side, forming interspaces b which are quite narrow upon the inner side, and may, if desired, be in contact with one another, and of sutticient width upon the outer side to readily receive and distribute the casing.

In Figs. 3 and i, A designates the roll, and the strip a 1s shown widest upon the interspace Z) widest upon the interior of the roll; but the narowest portion of the interspace is left open sufliciently as shown at c in Fig. 3, to permit the distribution of oil which is accumulated in the widest part of the interspace. Such narrow portion of the interspace forms a capillary interspace which attracts any oil over which the roll passes and stores the same until delivered to someother part of the bearing. The discharge of oil from such inner interspace b is facilitated by the rotation of the rolls, which produces a sutlicient degree of centrifugal force to deliver the oil through the narrow outer interspace as the rolls pass. over the surface of the shaft and casing.

The construction shown in Figs. 3 and 4 is outrun-arson, new a'nnsnr, a, (1QRPOBATIQN/ or, NEW

the oil as the roll moves in diiferent parts of The annexed drawing shows embodiments section of the bearing containing such rolls roller bearing, 0 a shaft supported within and the coils a are shown narrowest upon outer side of the roll, thus forming the spiral preferable Where a practically continuous surface is required, and in this form the ading which have arV-shaped interspace are faces.

vantages of the invention are secured withjoutm'aterially impairing the continuity of the surface of the roll. N

Fig. 1 plainly shows the wider partof the spiral interspace 12 upon the surface of the roll, and in this construction it has been found "in practice that the interspace serves as a receiver and retainer for any dirt or similar substances which may find their way into the bearing, thus avoiding the grinding of such substances by the-rolls, which operates to 'abrade and Wear the rolling 'sur- 'The'coils in thetrolls shown in the drawnecessarily. of trapezoidal cross section, with the wideredges of-the strip placed in contact, or separated by a capillary groove Which is disposed upon the inner or outer side ofthe roll, as may be desired.

It is immaterial Whether the rolls be cylindrical or of taperingv form, as the V "shaped interspace operates'the same in either case. r I am aware that in flexible shafts formed ofvspira'l coils some deformation of the strip results in winding the strip into coils, but such a flexible shaft is not used to support a load upon its cylindrical sides and is not lubricated externally and does not in any sense operate like the cylindrical bearingrolls claimed herein. Y

of a casing containing a set wound tubular bearmg-rolls and a shaft sup- 2. The combination in a roller bearing, of

a casing containing a 'set of spirally wound tubular bearingrolls and a shaft supported thereby, the spiral coils of the rolls being wider at'one edge than the other and the coils having a V-shaped spiral interspace between them proportioned and adapted to retain oil between the coils, and-distribute it upon the shaft and casing.

3. The combination, in a roller bearing, of spirally ported thereby, the spiral coils of the rolls having a trapezoidal cross section with their wider edges separated by a capillary interspace to permitthe passage of oil between the coils, to and from the shaft and casing.

I11 testimony whereof I have hereunto set my hand inthe presence of two subscribing witnesses.

CHARLES S. LOCKWOOD. Witnesses:

J. W. GREENBAUM, THO-MAS S. CRANE.

surface of the 

